Remotely logging in to Raspberry Pi 4 connected to Sixfab 5G development kit

I have a Raspberry Pi 4 connected with Sixfab 5G development kit Quectel module. The SIM card I am using has a fixed public IP address assigned to it. What configuration should I do so that I can remotely ssh raspberypi using the dedicated IP address that has been assigned to that SIM card?
Thank you.